The startup behind Chicago’s more than $1 billion quantum computing deal said operations are expected to start in three years, a win for Illinois Governor JB Pritzker, who backed the investment and is widely seen as a potential presidential candidate.

PsiQuantum Corp. will start construction at the state’s new quantum and microelectronics park in the South Side of Chicago later this year, Chief Executive Officer Jeremy O’Brien said in an interview at Bloomberg’s Chicago office. The supercomputer — one of two utility-scale, fault-tolerant machines the company is building globally — is expected to be online in 2028, he said.